# Tasks: CSS Layer Refactor
Imported from `docs/css-refactor-plan.md`. Each step = one agent session.
**Prerequisite:** `repo-restructure` change must be complete. All files in `src/layers/`.
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## Task 1 — Add missing aliases to token file
**Files:** `src/layers/01-asw.css` (pre-rename)
**Action:** Add semantic aliases for `--font-weight-N`, `--shadow-N`, `--border-size-2`, `--size-px-12`, and `--space-5a` gap.
**Acceptance:** Build passes. No visual change. New aliases exist in `:root`.
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## Task 2 — Extract editorial rules from token file
**Files:** `src/layers/01-asw.css`, `src/layers/08-layout.css`
**Action:** Move `body > nav` padding rule to `03-components.css`. Move `[data-layout="docs"] > article` max-width to `08-layout.css`. Token file becomes pure `:root` only.
**Acceptance:** Build passes. Nav centering and docs prose width unchanged.
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## Task 3 — Rename `01-asw.css` → `01-tokens.css`
**Files:** `src/layers/01-asw.css`, `src/main.css`
**Action:** Rename file, update `@import`.
**Acceptance:** Build passes.
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## Task 4 — Fix primitive leaks in `03-components.css`
**Files:** `src/layers/03-components.css`
**Action:** Replace all `--font-weight-N`, `--size-N`, `--shadow-N`, `--border-size-N` with semantic aliases.
**Acceptance:** Build passes. No visual change.
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## Task 5 — Fix primitive leaks in `06-charts.css`
**Files:** `src/layers/06-charts.css`
**Action:** Replace `--size-1/2/3` with `--space-1/2/4`.
**Acceptance:** Build passes. Charts render unchanged.
---
## Task 6 — Fix primitive leaks in remaining files
**Files:** `src/layers/02-semantic.css`, `src/layers/07-chroma.css`, `src/layers/08-layout.css`, `src/layers/09-landing.css`
**Action:** Replace all remaining `--font-weight-N`, `--size-N` primitives with semantic aliases.
**Acceptance:** Build passes after each file.
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## Task 7 — Create `03-landmarks.css`, extract from `03-components.css`
**Files:** `src/layers/03-components.css`, new `src/layers/03-landmarks.css`, `src/main.css`
**Action:** Move landmark sections (nav, article, dt/dd, section, hgroup, footer) to new file.
**Acceptance:** Build passes. All landmark styles render unchanged.
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## Task 8 — Create `04-forms.css`, extract from `03-components.css`
**Files:** `src/layers/03-components.css`, new `src/layers/04-forms.css`, `src/main.css`
**Action:** Move buttons and form elements to new file.
**Acceptance:** Build passes.
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## Task 9 — Create `06-navigation.css`, extract from `03-components.css`
**Files:** `src/layers/03-components.css`, new `src/layers/06-navigation.css`, `src/main.css`
**Action:** Move sidebar nav and TOC sections to new file.
**Acceptance:** Build passes. Sidebar and TOC render unchanged.
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## Task 10 — Rename files to final numbering + merge essay
**Files:** All layer files, `src/main.css`
**Action:** Rename to final numbers (see proposal layer map). Merge `08a-essay.css` into `11-layout.css`. Update all `@import` statements.
**Acceptance:** Build passes.
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## Task 11 — Audit unused tokens
**Files:** `src/layers/01-tokens.css`
**Action:** Build CSS, grep for token usage, diff defined vs used. Remove confirmed unused.
**Acceptance:** Build passes. Spot-check 3-4 pages visually.
---
## Task 12 — Fix HTML template issues from sidebar/TOC refactor
**Files:** `site/layouts/docs/single.html`, `site/layouts/notes/single.html` (post-restructure paths)
**Action:** From `docs/css-html-cleanup-todo.md`:
- Remove redundant `nav[data-nav="sidebar"] ul li { margin: 0; padding: 0 }` resets (if not already caught in Tasks 7/9)
- Remove redundant `aside[data-toc] nav ul li { margin: 0; padding: 0 }` resets (if not already caught in Tasks 7/9)
- Replace `← Previous` / `Next →` with appropriate element in prev/next footer
- Remove `role="main"` from `` in docs single layout
- Move hardcoded `"On this page"` string to Hugo i18n or site param
**Acceptance:** Build passes. Prev/next links render correctly. TOC heading uses i18n string. No `role="main"` on ``.